We have got a general idea of how our new flat will be decorated but nothing at the mome

问题补充：

We have got a general idea of how our new flat will be decorated, but nothing at the moment.

A. ambiguous

B. ambitious

C. concrete

D. permanent

答案：

A. ambiguous

B. ambitious

(答案→)C. concrete

D. permanent

解析：句意：我们有一个大致的想法,那就是我们的新公寓将装饰,但此刻没有具体的装修方案。

ambiguous 模糊的; ambitious有雄心的; concrete 具体的;permanent 永久的.结合句意，C最佳。

考点: 考查形容词词义辨析。